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(No Model.)

G. W. GREEN.

SGAPFOLD.

No. 249,757. Patented Nov. 22,1881.-

ttorneys NA Panna mwm-Llmngmphr, wnshingmn, n. c,

Unteren (.lEORGE lV. G- tEEN, OF VAKEMAN, OHIO.

.SCAFFOL.D.

SPECIFICATION forming part of Letters Patent No. 249,757, dated November 22, 1881.

Application tiled July Q1, 188i. (No model.)

To all whom t may concern:

Be it known that I, G. W. GREEN, of Wakeman, in the county of Huron and State of Ohio, have invented certain new and useful Improvements in Scaffolds; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Figure l is a perspective view of m r ini proved scaffolding' ready for use. lFig. .i is a/ sents the main frame or base, which consists of vertical sides or uprights BB and slanting end frames, C C', the upper ends of which abut against the said vertical side pieces, as shown. Horizontal braces D are provided to connect the side pieces with the end frames, and one of the latter, G, is provided with rungs E,like an ordinary ladder.

The inner sidesof the uprights B are 4provided with cleats F, forming guides for the vertically-slidin g extension of my improved scaffolding. The said extension consists of an ordinary ladder, L2, the sides G of which slide in the guides or ways formed by the cleats F, said sides being connected by rounds or rungs H. A platform, I, is secured to the upper ends of the sides G, the particular construction of which platform will be hereinafter more fully described and claimed.

Upon the inner sides of the upri'ghts B are secured or formed brackets J, having ypulleys K, and a shaft, L, isjournaled in suitable boxes mounted in crosspieces M, near the lower ends of the end frames, G C', as shown. Ropes, cords, or chains N are attached to the said shaft L, rove over the pulleys K, and attached to the lower ends of the vertically-sliding exlin the sides of the extension-ladder, which may thus be retained at any desired elevation. The said spring-parvis may, however, be held disengaged from the extension-ladder by means of latches S, pivoted tothe sides B, and capable of holding the lower ends of the pawls or levers closely against said sides, thus disengaging their upper ends from thc notches R.

The platform I, which forms the top of the extension-ladder, is provided on its under side with eyes or staples T, in which props U, having hooks V, may be adjusted to support the scaffolding while in use. Said props are provided at their lower ends with points lV, which may be. straight or hooked, according to the.

nature of the ground or pavementupon which the scaffolding is placed'.`

A slide, X, adjustable by a set-screw, Y, is arranged between cleats Z upon the under side of the platform. Said slide will serve as a support in cases where the scaffolding is placed lagainst a wall, which makes it impracticable to use one of the props or supports U.

A' is a bracket secured on top of the platform I, and provided with a hook, B', upon which a pulley may be hung, to enable buckets, hods, Ste., to be conveniently raised or lowered.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of my invention will be readily understood. .lt may be conveniently used, either singly or in pairs, in which latter case a plank may be supported upon the top platforms, which may be readily adjusted vertically to the desired height. It is simple, inexpensive, and easily manipulated.

Having thus described myinvention, I claim and desire to secure by Letters Patent of the In testimony that I claim the foregoing as zo United Statesmy own I have hereto affixed my signature in As an improvement in scatfolds, the combipresence of two Witnesses.

11a-tion, with the frame B C D E, constructed as herein described, of the vertically-adjusts GEORG-E IV. GREEN. ble ladder L2, having platform I, provided with g :t laterally-adjustable slide or bruce, X, snblVitnesses:

stantially as and for the purpose shown and E. A. BUTLER,

specified. M. O. VANFLEET. 

